18938146

素因数分解:

$2^1\times {\mathrm{41}}^2\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:258

約数の個数: 24

約数和(自身を含む): 30021552

約数和(自身を除く): 11083406

約数列:

[1, 2, 41, 43, 82, 86, 131, 262, 1681, 1763, 3362, 3526, 5371, 5633, 10742, 11266, 72283, 144566, 220211, 230953, 440422, 461906, 9469073, 18938146]

約数ペア:

[(1, 18938146), (2, 9469073), (41, 461906), (43, 440422), (82, 230953), (86, 220211), (131, 144566), (262, 72283), (1681, 11266), (1763, 10742), (3362, 5633), (3526, 5371)]